Invisible digital color watermarking technique in anaglyph 3D images

In recent years, 3D technology has grown significantly and over the time has become more accessible to a wider group of people, however, there is so few research that seeks to protect the intellectual property of 3D content, in specific anaglyph images, which are easier and cheaper to generate. This paper presents a method to embed a color image as an invisible watermark into a 3D anaglyph image, for the protection of intellectual property of this type of digital material; the insertion algorithm is performed in the DCT domain using the QIM-DM method in order to achieve the maximum imperceptibility of the watermark. Results demonstrate highest robustness of the algorithm to JPEG compression, impulsive noise, Gaussian noise, as well as high imperceptibility of the watermark obtaining average values of about 40dB in the PSNR between the original and marked anaglyph images.